In Draenor there are two things that matter, how closely your stats match your spec’s needs and how well you’re buffed. Good stat distribution and full coverage on buffs and it’s easy to rock Draenor. Ignore one or the other and you are going to struggle even if your rotation rocks.
For sorting my armor/enchants/gems I use AskMrRobot. It’s an addon and a website and to use it at its fullest you have to subscribe. The amount in minuscule for the benefit it offers, though it is confusing as the layout/operation is a bit awkward. Nothing else does the same job so I suck it up and pay.
Because stat distribution is so important and so specific to each spec, I don’t try and figure out what to equip and what enchants to apply on my own. With many specs at level 100 I choose to not to spend time sorting out which item in my bag matched with which other items on my toon or in my bag is going to give me the right combo of stats with which enchants . . . I want to spend my time playing, not wracking my brain. I LOVE AMR. I can mindlessly equip what it says, enchant what it says and not worry about whether it’s right. It frees me up for the fun stuff. And if you’re running without Draenor enchants on neck, cloak and rings you’re taking a big hit in dps. If you’re having trouble staying alive you might want to consider getting your gear enchanted. If your gear isn’t 695 or better, use Breath of enchants and Mark of the Shattered Hand (weapons) and save your gold for the big enchants when you get better gear.
Buffs . . . Oralius’ Whispering Crystal or stat flask is a must. Stat flasks give bigger stat buffs, last an hour and persist through death but they’re expensive. A 100/125 stat food buff is a must. Savage Feast is great because it’s one size fits all. It gives you 100 of your most useful stat. Tent buff is a huge plus (10% bump all stats) and if your armor score is less than healthy it’s a must. The rune buff is also a big plus. Every buff makes you stronger, healthier and increases your dps.
Wear the most appropriate gear you can, make sure it’s enchanted and get those buffs onboard and you’ll rock Draenor.